Unplug the power cord of the modem or router from the electrical outlet for 30 seconds.

Plug the power cord back into the outlet and wait until the flashing lights indicate that the modem or router has completely restarted.

Check the network condition by performing a network diagnosis.NOTE: If the network diagnosis result is not OK, re-configure the network settings and try to diagnose the connection again. Refer to your TV manuals for detailed instructions on how to re-configure the network settings.